The player controls a wizard named Shadax and explores a maze of isometric rooms and gardens of the fortress Kastlerock to find the six pieces of the Staff of Demnos, the only weapon that can defeat Morbius. The non-linear adventure game does not impose a fixed sequence of play, although Shadax must collect various keys, depress "plungers", and set off bombs before he can enter parts of the dungeon. Shadax can jump, pick up objects, and use various potions, and must generally avoid touching monsters to survive.